public class demo3_List {

    private int[] elem;//用来存放数据元素
    private int usedSize;//列表的大小

    private static final int DEFAULT_SIZE = 10;

    public demo3_List(){
        this.elem = new int[DEFAULT_SIZE];
    }

    public demo3_List(int initCapacity){
        this.elem = new int[initCapacity];
    }


}
